v8/test/mjsunit/harmony/iteration-syntax.js

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// Flags: --harmony-iteration --harmony-scoping

// Test for-of syntax.

"use strict";

function f() { for (x of y) { } }
function f() { for (var x of y) { } }
function f() { for (let x of y) { } }

assertThrows("function f() { for (x of) { } }", SyntaxError);
assertThrows("function f() { for (x of y z) { } }", SyntaxError);
assertThrows("function f() { for (x of y;) { } }", SyntaxError);

assertThrows("function f() { for (var x of) { } }", SyntaxError);
assertThrows("function f() { for (var x of y z) { } }", SyntaxError);
assertThrows("function f() { for (var x of y;) { } }", SyntaxError);

assertThrows("function f() { for (let x of) { } }", SyntaxError);
assertThrows("function f() { for (let x of y z) { } }", SyntaxError);
assertThrows("function f() { for (let x of y;) { } }", SyntaxError);

assertThrows("function f() { for (of y) { } }", SyntaxError);
assertThrows("function f() { for (of of) { } }", SyntaxError);
assertThrows("function f() { for (var of y) { } }", SyntaxError);
assertThrows("function f() { for (var of of) { } }", SyntaxError);
assertThrows("function f() { for (let of y) { } }", SyntaxError);
assertThrows("function f() { for (let of of) { } }", SyntaxError);

assertThrows("function f() { for (x = 3 of y) { } }", SyntaxError);
assertThrows("function f() { for (var x = 3 of y) { } }", SyntaxError);
assertThrows("function f() { for (let x = 3 of y) { } }", SyntaxError);


// Alack, this appears to be valid.
function f() { for (of of y) { } }
function f() { for (let of of y) { } }
function f() { for (var of of y) { } }

// This too, of course.
function f() { for (of in y) { } }
function f() { for (var of in y) { } }
function f() { for (let of in y) { } }